Home / 826,714.80-1,240,072.20-543,279.60

Finding the Fourth Proportional to 826,714.80, 1,240,072.20 and 543,279.60

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Solution

The fourth proportional to 826,714.80, 1,240,072.20 and 543,279.60 is: 814,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,714.80 : 1,240,072.20 = 543,279.60 : x
  2. Step 2: Convert to fraction form
    826,714.80/1,240,072.20 = 543,279.60/x
  3. Step 3: Cross multiply
    826,714.80x = 1,240,072.20 × 543,279.60
  4. Step 4: Simplify right side
    826,714.80x = 673,705,928,787.12
  5. Step 5: Solve for x
    x = 673,705,928,787.12/826,714.80
  6. Step 6: Final answer
    x = 814,919.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.